Calculating-machine.



A. PE NTECOST.

EALCULATING MACHHNE.

APPLICATION map- FEB. 28. me.

Patented Mar. 11,1919.

2 SHEETS-SHEET 2- I669 INVENTOR /605 p g M UNITED STATES PATENT FFIQE.

AJBEHUR PENTECOS'I, 035' EAST ORANGE, NEW JERSEY, ASSIGNOR TO THE ADDEBMACHINE COMPANY, 0F WILKES-BAKER PENNSYLVANIA, A. CORPORATION OFFENNSYLYAHIA.

p the motor when through his work on the machine, and the motorcontinues to run until the current is interrupted, thereby increasingelectric power expense bills and causing deterioration of the motor.

To prevent these conditions, motor-driven devices have been provided toautomatically open or break the circuit alter the calculatmg" machinehas been idle a limited time. an operation of the calculating machinewithin the period or time, a the expiration oi which the cut-0dmechanism is set to or became out of order during its operation,

or when the operator had finished his work.

Instead, once the power was switched on, the motor had to run until thetime arrived at which. the automatic cut-oil was set to operate. Thiswas liable to result in greatly straining and injuring both the machineand the motor, if the mechanism was out of order when the power wasturned on or became out of order while the motor was running.

One object of the present invention is to enable the operator tomanually switcbthe power as or on at will, as well as to provideautomatic means to switch the power off in case the machine is notoperated during a certain interval of time.

Another object is the provision of an auto- C.lLCULATING-MACHINE.

Epccification of Letters Eatent. I

Patented Mar. til, 1919.

Application filed February 28, 1918. Serial at. 80,905.

matic motor cut-out mechanism readily applicable to or removable trommachinm in use with but little change.

Still another object is the provision of a neat, compact and simplifiedautomatic motor cut-out mechanism, comprising few parts readilyassembled and not liable to get out of order, and operatingsubstantially noiselessly, and without material strain on or undueloading of the motor.

The invention further includes certain other novel features andcombinations of parts, all of which will be fully explained hereinafter,and particularly pointed out in the claims.

In the accompanying drawings, Figure l is a side elevation of oneembodiment of the invention applied to the well-known Wales calculatingmachine;

Fig. 2 is a sectional view, partly in full lines, showing the automaticcut-out mechanism alone;

' Fig. 3 is a detail sectional view, showing the usual Wales clutchmechanism which drives the main shaft of the machine;

Fig. at is a detail perspective of thepower controller-actuating arm;

Fig. 5 is a perspective of the delayed clutch'mechanism, disassembled,which directly operates the controller-actuating arm;

Fig. 6 is a plan view of the invention, applied to the motor drive of aWales machine;

Fig.- 7 is a diagrammatic view, illustrat- Fig. 10 is a detailcross-sectional view,

showing one means for driving the automatic motor cut-out mechamsm fromthe motor.

The invention is illustrated in connection with a Wales calculatingmachine of familiarv type, such as is shown in the patents to Wales,

#797,032, August 15, 1905; McFarland,

#842,232, January 29, 1907 and McFarland and Wales, #880,157, February25, 1908; equipped with a motor drive and clutch mechanism such as isfound in patents to 'Wilgus, #1,150,916, au ust 24, 1915, and

' Kuentzler, #1,151,s03, August 31, 1915, the

1690 which drives a worm shaft 1601 having its bearings in a hanger 1665secured to the base by screws 1664. A worm 1631 fast on the worm shaft,drives a worm wheel 1669 'ournaled on a counter shaft 1603 having itsearings in the hanger 1665 above the worm shaft and at right anglesthereto. A nor mally idle clutch mechanism (Fig. 3 controlled by astarting key 915 1/2 (Flg. 1),

releasably connects the Worm wheel 1669 to the counter shaft 1603.

This clutch comprises a ratchet 1630 (Fig. 3) loose on the counter shaft1603 and turning with the motor-driven worm wheel 1669. A hub 1667 faston the counter shaft en.-

circles the ratchet. Pawls 1651pivotally secured to one arm of. theirrespective rockers 1612, project through apertures in the hub to engagethe ratchet and effect the rotation of the counter shaft.

The rockers 1612 are pivoted at 1600 to oppositel extending arms of acarrier v1611 journale on the hub 1667. Springs 1680 connected to theremaining arms of the rockers 1612 partially rotate the carrier andpress the pawls- 1651 into engagement with the ratchet 1630.

A laterally projecting stud 1653 on a clutch-releasing finger 1665 1/4fastened to a arallelwith the counter shaft shaft 1602 1603, norma lyengages one arm of the carrier 1611 to cause the carrier to rock againstthe tension of springs 1680 and withdraw the pawls 1651 from the ratchet1630. 1 A restoring spring 1681 holds the clutchreleasing finger 16651/4 in efi'ectiveposition to maintain the pawls withdrawn.

Depression of the starting ke 915 1/2 slidable through a slot 916 1/2Fig. 6) in a lever arm 916 1/2, on a shaft 900 1/2, compresses a spring984 (Figs. 1 and 6) resting upon the lever arm 916 1/2 to rock thelatter,-and turn the shaft900 1/2. The shaft 900 1/2 is journaled in theside frames 967 (Fig. 1) and carries a second arm 913 1/2, which, whenrocked, depresses a link 1660 1 4, connecting the'arm 913. '1/2, to theo the clutch-releasing finger 1665 1/4 1g. 3'

against the tension of restoring s ring 1684 to release the pawl carrier1611, reeing the latter and the rockers 1612 to the action of thesprings 1680, which thereupon oscillate the rockers to engage the dogsor pawls 1651 with the ratchet 1630 and thus connect the motor andcounter shaft, throughthe worm gearing and clutch mechanism. The countershaft 1603 drives the main shaft (not shown) of the calculating machine.

For a more complete ex lanation of the motor drive, includin the c utchmechanism and the connections rom the motor to. the main drive shaft, aswell as the starting key mechanism, reference is made to United StatesPatents to Wilgus', #1,150,916, and to Kue'ntzler, #1,151,803, abovementioned.

An electric motor is preferably employed, and power therefor is derivedfrom any suitable source of supply, as the ordinary lighting circuit,for instance,.the power being admitted to or cut off from the motor 1690by any usual form of electric switch, in the motor circuit, as the pushbutton switch 997 (Figs. 6 and 7). i 1

These switches commonly include push buttons 1 and2 (Fig. 6) pivotallyconnected to the opposite arms of a rocker 3 fixed on a shaft 4, whichshaft also carries the blade 5 (Fig. 7) adapted to' open or close thecircuit between the contacts 6 and 7 within the switch box.

Depressing either button 1 or 2, turns the rocker against the tension ofa relatively strong spring 8, to operate the blade to close snapped 'toits opposite limit of travel and agam locked.

A casing 968 1/4 secured to the base 965 of the machine, incloses theswitch mechanism 997 and protects it against injury.

The switch buttons, in my present invention, are unobstructed andreadily accessible to the operator, to enable him to manually switch thepower on or ofiz' at will.

The foregoing is not herein claimed as new 7161 se and only constitutespart of the present invention in so far as it is combined with the novelfeatures now to be disclosed.

The switch or power controller 997, besides being easily actuated by theoperator, is automatically actuated from. the motor through aprogressively acting mechanism, the effectiveness of which is completeonly after the lapse of a predetermined interval of time, to open themotor circuit and prevent waste of current and wear of the parts p IWhile the machine is not being operated. The link 1660 1/4 rocks thefinger 1665 1/4 or a series of successively act-ing clutches, the

initial one of which is driven'from the motor, and the final one ofwhich operates controller-aetuating means to switch off the ourrent, butit is possible to use a less number of clutch mechanisms, if desired,Without de arting from the scope of this invention. eferring to Fig. 10,the hub 1669 of the motor-driven worm wheel 1669 is counterbored to fitover the inner end of a stub shaft 9 journaled in the hanger 1665, thehub being secured in any suitable manner to the stub shaft, as by a setscrew 10, to drive the shaft. The inner end of the stub shaft may beconveniently bored to form a seat fog the adjacent end of the countershaft A worm 11 on the stub shaft, drives a worm gear 12, jou'rnaled ona supporting shaft 13 (Figs. 2 and 9) mounted at one end in a bearingformed in a bracket 14, (Figs. 1 and 6), projecting from the hanger1665, the opposite end of the shaft passing through a bearing gland 15(Fig. 2) fastened, as by a set screw 16 in a hollow boss 17, formed in aflange or wing 18 (Fig. 6) extending laterally from the hanger 1665.

The worm gear 12 constitutes the drive member of a positive or initialclutch and carries projecting fixtures 19, which, at points 20 neartheir outer ends, pivotally support pawls or dogs 21. The effective armsof the pawls 21 extend backwardly from their pivot points toward theface of the worm gear, and lie substantially parallel with the"fixtures. The lower edges of the free ends of thearms overhang and coactwith the teeth of a ratchet or driven member 22, concentric with theworm gear 12 but of less diameter. The fixtures, with which the pawlscontact, brace the pawls against lateral strain, (see Fig. 9), and liebeyond r the toothed periphery of the driven member 22 of they positiveclutch, which is releasably engaged by the pawls.

The driven member (Fig. 2) conveniently forms part of a spool-shapedsleeve 23 loose on'the shaft 13 and'having the toothed wheel 22 at oneend, and a circular flange 24 at its opposite end.

A yoke 25 (Figs. 2 and 9) loosely embraces the waist of the sleeve, andsprings 26 connect the respective arms of the yoke with ears 27 on thepawls or do s 21, to retain the latter in engagement wit thera-tchet ordriven member '22. Relative rotation between the drive and drivenmemlbersof the positive clutch, when disengaged, may take place withoutdisplacement or distortion of thesprings, owing to the loose engagementof the yoke and sleeve:

T-he driven member 22 of the positive clutch mechanism drives aprogressively acting clutch comprising a spring (Fig. 2) coiled looselyaround the supportlng sha t13 one end of which spring is secured at 29(Fig.

. switch blade 5 (Fi ing, it is obvious that as the winding device (thedriven member 22) turns, the spring Y coils will gradually contractabout, and, after a predetermined lapse of time, grip the shaft 13 torotate the latter, the spring constituting a flexible constrictingclutch, the inherent resiliency of which tends to turn the shaft beforethe coils grip it.

The speed of rotation of the motor worm shaft 1601, (Fig. 1) issuccessively geared down through the engagement of worm 1631 and wormwheel 1669, and also-through the engagement of worm 11 and worm gear 12,so that a plurality of rotations of the sleeve 23 are required beforethe spring clutch 28 exerts a power on the shaft 13 sufficient to turnthe latter, and it is this delayed action of which I take advantageto-afford the operator a, predeterminedamount of time within which tooperate the machine before the power is cut off from the motor; Such cutoff is directly and positively accomplished in the present instance, asfollows:

A 'dilatoryclutch mechanism is mounted on that end of the supportingshaft 13 which projects beyond the flange 18 of the hanger, andcomprises a drive member, in the form of a collar 31 pinned? to theshaft 13, as at '32, and haying an inclined or-cam tooth 33 projectingfrom the outer edge thereof-and normally fitting in a similarly shapedrecess 34 formed in the adjacent edge of a hub-.35 loose on the shaft. Acompression spring 36 surrounding the shaft 13 presses the'hub 35against the collar to maintain them in complete engagement. One end ofthesprin g 36 bears against the hub and the opposite end contacts anabutment 37 secured to the switch rocker 3 to which the circuit breakingor off button 2 is" connected, so that when the lever is rocked by themember 39, it will, as itreaches its limit of travel, operate the switchto open the circuit.

In the manual operation of the switch, depression of the on or circuitmakingbutton 1 (Fig. 6 shifts the-rocker 3 against 8, and swings the toengage the con the tension of spring) tacts '6 and 7. T e rocker in itstravel,

forces the off or circuit breaking button 2 outwardly from the switchbox and also 'swings the lever 42 from its idle position,

39, orif it was desired to obstruct the face of the switch box, the arm39 could be arranged to operate directlyagainst the protruded 01fbutton.

Assuming the on button 1 to have been depressed to complete the motorcircuit, the

power energizes the motor to drive the worm shaft 1601 (Fig. 1), andthrough the worm 1631, worm w eel 1669, stub staft 9, and worm 11,-turnsthe worm gear 12of the positive clutch. The pawls 21 normally engagingthe ratchet or driven member 22 of the positive clutch, transmit motionthereto to'rotate the latter on the shaft 13 and wind the spring orprogressively acting clutch 28, the coils ofwhich gradually con tractuntil they develop suflicient power to I turn' the shaft 13 against suchslight frictional resistance to its rotation as is present at 'thlst1me.

As the shaft turns, it rotates the collar or travels in the direction ofthe arrow, (Fig.

2). The pressure of the resetting spring 36 holds the loose hub ordriven member 35 of the delayed clutch mechanism snugly against thecollar, which tends to rotate the hub, and with it thecontroller-actuating arm 39 until the outer end of the latter contactsthe cam 41 of the lever 42 (as shown in dottedlines in Fig. 6).

The relatively strong. spring 8 holds the lever 42 in its dotted lineposition, Fig. 6, and the resistance thus encountered,'arrests the arm39, and with it the hub 35, collar 31 and shaft 13. I The positiveclutch mechanism, however, continues to wind-the coils -of 'the flexibleclutch 28 more tightly about the shaft 13 until the latter again startsto rotate. f

At this'ftime, the grip of the flexible clutch is sfifliciently strongto turn the shaft and the collar 31in spite of theresistance offeredbyth'e lever 42, arm '39 and hub 35, which'is not at present overcome,and consequently, the controller-actuating; arm 39 and its hub 35 remainstationary, or at most, turn but slightly. Now, the rotation of theshaft 13, and the collar 31, causes the tooth 33 of the collar to wipealong the inclined face of the recess 34, and forces the hub axially ofthe shaft, further compressin the resetting spring 36 until finally thehu can be forced back no farther, either because of bviously other means.41 of the lever 42, to swing the lever and the extreme tension of thespring 36, or because its coils have been forced together and forman'unyielding stop between the abutment 37 and'the hub 35. i

A combined guide and drive lug 46 (Figs. 5 and 6) projects from theouter edge of the collar 31, into a notch 47 formed in the adjacent edgeof the loose hub 35, the notch peing of greater length than the width ofthe he lug 46 normally lies against one wall of the notch (Fig. 6), butas the tooth 33 rides part way up the inclined recess 34, during therotation of the collar relatively to the hub, the lug traverses itsnotch until it strikesthe opposite wall thereof and thus directlyapplies the force of the clutch 28 to the arm 39.

As this point is reached, the progressive clutch 28 has developedsufficient owe'r to overcome the spring 8 and the friction of the parts,whereupon, the lug 46 slowly 'turns the hub 35 and thecontroller-actuating arm 39, causing the latter to wipe past the cam 9Oshift the rocker 3, thereby throwing the switch and opening the motorcir it.

The resistance of the cam levento the actuating arm causes the effectiveoperation of the motor cut-out clutch mechanism. It is evident that theoperation of constricting the coils of the progressively-actingclutchsprin 28', about the shaft 13, will store considerab e power inthe spring, the tendency of which is to turn the driven member 22 of thepositive clutch in the opposite direction to that in which it is turnedby the worm gear 12. Since the driven member 22 is held against reverserotation by the. pawls 21, the worm gear 12 and connected parts, thespring tension is exerted upon the shaft 13 at point 30 to turn thelatter in the same direction that it turns when driving thecontroller-actuating arm 39.

Consequently, the actuating arm 39, after crowding past the apex of thecam 41 on the lever 42, frees the shaft 13 to the action of the flexibleclutch s ring 28, which thereupon rotates the sha 13 and arm at a very.rapid rate until the stored power is expassed, and cause a clicking orchattering noise.

This objectionable noise is obviated in the present arrangement by thetensioned resetting spring 36,'the pressure of which against the hub 35,after the latter and its arm 39 escape from the lever 42, reverselyturns the hub and the arm relatively to the 1 0 fixed collar 31, owingto the contacting inclined'surfaces of the recess 34 and tooth'33, tofit the recess over the tooth-and thereby shift the arm axially of theshaft 13 to restore it to its ori al orbit or plane of movement in whicit passes the cam 41 without contact. The lug 46 guides the hub and arm39 during their axial travel, the.

lug 46 bein longer than the tooth 33, and the notch 4 in the hub beingdeeper than the recess 34. The length of the notch in excess of thewidth of the lug. permits a limited relative rotation between the huband collar without permitting the tooth to escape from the recess.

The shaft 13, during its rapid rotation, under the influence of thespring 28, just after the switch is tripped or actuated, would acquireconsiderable momentum and the expenditure of power, if uncontrolled,might injure the spring clutch, or tear it away from its fastenings, toprevent which, I provide the shaft 13 with a head 48 (Figs. 2 and 8)secured thereto at 49, centra ly of a circular chamber 50 formed in oneface of the stationary supporting flange 18. Governor sectors or weights51 slide loosely on spokes 52 projecting radially from the head, and arepreferably equipped on their arcuate outer edges with leather or othernoiseless wear cushions 53 adapted to rub along the circular wall of thechamber 50, when the sectors have slid outwardly due to centrifugalforce, to govern the speed of rotation of the shaft.

Upon the expenditure of the power stored in spring 28, the shaft 13might come to rest at any point in its rotation. Should the free end ofarm 39 stop in the path of the apex of the cam 41 on lever 42, it wouldarrest the lever as it is shifted by the operator, upon depression ofthe on button- 1, before the blade 5-engages contacts 6 and V 7, andwould thus prevent the completion ranged out of line with the apexofrthe cam 41. As the'shaft turns, the pips or bosses wi e over the faceof the chamber and into and out of the indentations therein until thewer will seat in the indentations and arrest shaft 13 to hold theactuating arm 39 out of line with the apex of the cam 41.

. previously stored in the spring .28 1s practically exhausted,whereupon the pigs e This arrangement has, proven very satisfactory inoperation, but if the actuating arm 39 should be intentionally orpossibl accidentally, arrested in the path of the hig point of the cam,it may readily be displaced by turning the shaft 13 slightly in eitherdirection, the abutment 37 being provided with a knurled head for thispurpose.

The contraction and expansion of the coils of the flexible clutch spring28 may be attended by some noise, particularly when the spring isunwinding, to deaden which I inclose the spring in a sheath, including atubular lining 58 (Fig. 2), preferably of wood or fiber, which, ifscored by the coils, will not cause them to bind, the scorings beingerased, or running into each other as the device is used. Such tubularlining fits within a metal cylinder 59, which supports the lining, andis mounted at its opposite ends on the flange 24 of the sleeve memberand the periphery of the bearing gland 15, respectively. The flange 24may turn relatively to the cylinder 59. Graphite is preferablyintroduced into the space inclosed by the iining to afford-a supply oflubricant. This lining 58 also prevents undue relaxation of the spring28, and reduces the possibility of breakage of the spring, to a minimum.

If there were no means for disabling or resetting the foregoingautomatic motor cutout, it would be necessary for the operator tocontinually operate the circuit-closing button 1 of the switch 997, inorder to continue the machine in operation, to avoid which disadvantage,1 provide means actuated by the depression of the starting key 915 1/2(Fig. 1),which in effect, renders the automatic cut-out inoperative solong as the machine is operated at reasonable intervals, as when themachine is in active use.

Depressing the startin key 9151/2 rocks the motor drive clutc -releasingfinger 1665 1/4 fast on the shaft 1602, as heretofore explained, toenable the motor to drive the machine. Such rocking'of the, releasingfinger thus turns the shaft 1602, one end of.

which projects outside the hanger 1665 in which it has' its bearings.Arms 60 (Figs. 1 and 6) on the projectlng end of the shaft 1602 embracethe casing 59, and links 61 connect the arms with the annular bearing 62of a clutch-releasing device slidably mounted on the casing 59. Aninternally ooved. flange 63 (Fig. 2), carried by the caring incloses thepawls or dogs 21 to protect and guard the latter, the outer circular lipof suchflange lying adjacent lugs 65 projectin outwardly from the dogs.

As t e shaft 1602 turns, it rocks the arms 60 thereonto draw theclutch-release member forwardly on the supporting casing 59 and causethe lip 64 to engage the lugs 65 to rock the pawls 21 out of engagementwith their normal positions, thereby permitting pawl springs 25 toreiingage the pawls 21 with the ratchet 22.

In this manner, the automatic clutch mechanism is reset whenever thestarting key is depressed, to extend the time duringwhich the machine isoperable.

An arm 1655 (Fig. 1) on theshaft 1602, has a stud 1655 playing in a slot1665 in the hanger 1665 to limit the rotation of the shaft 1602, andhence the travel of the clutch-releasing device, ineither direction.

The positive, flexible and delayed clutch mechanisms arearranged intrain, and are successively operated. i

'Changes may be made in the form and arrangement of the several arts setforth, and parts omitted, without eparting from the spirit and scope ofthis invention. For example, the delayed clutch mechanism comprising, inthe present embodiment, the collar 31 and hub 35 might be excluded, orthe principle of the delayed clutch might be retained and extendedwithout using the flexible clutch spring 28.

The length of. time elapsing between the,

moment at which the motor'circuit is completed, and the moment when thecircuit is automatically broken, may be diminished or extended byshortening or lengthening the spring 28, enlarging or 'decreasin thediameter. of its coils, or lengthening or s I on. ening theresettingspring 36, and correspondingly varying the height of the tooth33 and 1. The combination with a motor; and a the depth of the inclinedrecess34. Or such mterval may be changed by altering the shape or heightof the canrl on lever 42.

I have not applied the term time-controlled to the foregoing i nvention,because it is-not strictly speaking a time-controlled mechanism, therebeing no horologic device in control thereof.

.What I claim as new, is

power controller to switch the power onand ofi: relatively to the motor;of a motordriven progressively-actin clutch mechamsm to actuate thecontrol er,the operation of said clutch mechanism being effected by theresistance offered by the controller; and means to disconnect the clutchmechanism from the motor at will, to enable the-clutch p eehamsm torestore to its initial condi- 2. The combination with a motor; and apower controller to switch the power on and oil relatively to the motor;of a controlleractuator; and a progressively-acting, motor- 3. Thecombination with a motor; and a. l I

power controller to switch the power on and off relatively to the motor;of a motor- :drlven clutch i'nechan sm; a COIISiJI'IOtIIIg [clutchmechanism driven thereby; controller-actuating means operated by theconstricting clutch mechanism; and means to disable the motor-drivenclutch mechanism at will, to disconnect the constricting clutchmechanism and motor, and permit the constricting clutch mechanism toresume its normal relaxed condition.

4'. The combination with a motor; and a power controller to switch thepower on and off relatively to the motor; of an automatic motor cut-off,including a shaft, a motordriven releasable clutch; a flexible,poweraccumulating means operated by the motordriven clutch to turn theshaft; a controller-actuator driven by the shaft; and means to operatethe clutch at will to disconnect the poweraccumulating means and themotor, to permit the power-accumulating means to idly discharge itsstored power.

5. The combination with a motor; and a power controller to switch thepower on and ofi' relatively to the motor; of an automatic .motorcut-ofi', including a shaft; a motordriven clutch; a flexible,power-accumulating means operated by e motor-driven clutch to turn theshaft, the operation of said means being effected by the resistance toits movement offered by the power controller; a controller-actuatordriven by the shaft; and means to operate the clutch at will todisconnect the power-accumulating means and the motor, to permit thepoweraccumulating means to idly discharge its stored power.

6. The combination with amotor; and a power controller to switch thepower on and off relatively to the motor; of an automatic.

motor cut-out, including a spring; a releasable connection between thetensioning means and the motor to tension the'spring; a rotatable-shaftto which the spring isconnected,

the shaft being driven by the spring; a controller actuatlng devicemounted on the a" sha.ft,.andhaving a substantially temporary" I contactwith the controller; and means to" o erate the releasable connection atwill to dlsconnect the motor and the spring, to permit the latter toidlyexpend the tension pre- .viousl accumulated. Q

7. he combination Wltll a motor; and a power controller to switch thepower on and off relativel to the motor; of an automatic motor cut-oincluding a rotatable member;

the spring being driven by the rotatable member and the other end beingconnected to the shaft; and means operable at will to disable thedriving connection, to enable the spring to resume its normal relaxedcondition.

8. The combination with a motor; and a power controller to switch thepower on or oil' relatively to the motor; of a motor-driven member having] a pawl; a toothed wheel normally engaged by the pawl; a shaft onwhich the motor-driven member and wheel are loosely mounted; aconstricting clutch mechanism surrounding the shaft and driven by thewheel; and a controller-actuating means associated with the shaft to beoperated by the constricting clutch mechanism.

9. The combination with a motor; and a power controller to switch thepower on or off relatively to the motor; of an actuating means for thecontroller; and a motordriven, progressively=acting clutch mechanism tooperate the controller, the operation of said clutch mechanism beingcontrolled by the resistance offered by the controller; an arrestingdevice for the actuating means,

effective subsequently to the operation of the controller, to check theactuating means at a predetermined point in its travel.

10. The combination with a motor; and a power controller to switch thepower on or off relatively to the motor; of an automatic motor cut-out,including a spring; means to tension the spring; a connection betweenthe tensioning means and the motor; a shaft to which the spring isconnected; a controlleractuating device mounted on the shaft; and.'means to arrest the shaft and controller-actially exhausted; and meansto arrest the actuating devicein non-interfering position relatively tothe controller.

12. The comb'nationwith a motor; and a power controller to switch thepower on or ofi relatively to the motor; of a shaft; aprogressively-acting, constrictin ower-accnmulating means to turn the sa a motordriven connection with the power-accumulating means; acontroller-actuating device on the shaft; and meansto arrest theactuating devlce in non-mterfermg position relatively to the controllersubsequently to the automatic actuation of the controller.

13. The combination with a motor; and a power controller to switch thepower on or oil? relatively to the motor; of a shaft; aprogressivcly-acting, constricting, power-accumulating means to turn theshaft; a motor driven connection with'the power-accumulating means; acontroller-actuating device 7 on the shaft; the power-accumulating meansadapted to continue to turn the shaft and actuating device after theactuation of the controller, until its power is substantially exhausted;and means to arrest the actuating device in non-interfering positionrelatively to the controller, comprising a resilient plate fixed to theshaft and having a plurality of arms; bosses on the arms, and astationary 7 surface against which the plate turns, and

having indentations in the paths of the bosses to arrest the plate andshaft when the. power in the accumulating means is practically expended.

l-fi. The combination with a motor; and a power controller to switch thepower on or off relatively to the motor; of a motor-driven member; acontroller-actuating means; a progressively-acting clutch mechanismoperated by the motor-driven member to drive the actuating mcans, theoperation of said clutch mechanism being controlled by the resistanceoffered by the controller; and keyoperated means to disable theconnection between the motor-driven member and the progressive clutchmechanism, to enable the latter to return to'its initial condition,prior to the automatic operation of the controller.

The combination with a motor; and a power controller to switch the poweron or off relatively to the motor; of a motor-driven member; acontroller-actuator; a flexible, power-accumulating means connected withthemotor-driven member to drive the controller-actuator, the operationof said means being controlled by the resistance oflered by thecontroller; and manually-operable means to interrupt the connectionbetween the motor-driven member and the power-accun'nilating means, toenable the latter to return to initial condition prior to the automaticoperationof the controller.

16. The combination with a motor; and a power controller operable atwill to alternately switch the power on and off relatively to the motor;of progressively-acting, motor-driven means to automatically actuate thecontroller, including several clutch. mechanisms arranged intrainwhereby one clutch mechanism is driven by the preceding mechanismand manually-operable meansto interrupt the connection between the motorand the clutch mechanisms to. enable the antomatic return of suchmechanisms to normal.

17. 'The combination with a motor; and a power controller to switch thepower on or' off relatively to the motor; of means to automaticalloperate the power. controller to switch t e power olf, including a trainof clutch mechanisms, drivenflfrom the motor, I

one of which clutch mechanisms is adapted to act progressively toaccumulate suflicient power to become effective; controller-actuatingmeans operated by the progressive clutch mechanism to switch the poweroff; and means to release another of the clutch mechanisms in said traintov enable the automatio restoration of the progressive clutch mechanismto its initial condition after it has commenced to accumulate power.

18. The combination with a motor; and a power controller to switchthe-power on or off relatively to the motor; of a motor-driven clutch; aconstricting device connected to," and gradually rendered effective .bythe driven member of the clutch; a shaft operable by the constrictingmember after it has 7 become effective; a controller-actuating deviceoperated by the shaft to trip the controller; and manually-operablemeans to release the clutch and permit the constricting member toautomatically restore to inefi'ecto be driven by the spring; acontroller-actu-ating device mounted on. the shaft to coact with thepower controller and switch the power off; and means to interrupt theconnectionbetween the motor'and the spring, to

enable the spring to idly return' to; normal condition.

20. The combination with a motor and a power controller to swltch thepower on and off relativel to the motor; of a motor-driven progressivey-actin clutch mechanism to actuate the contro er, the controllerincluding a member adjustable into and out-of the throughthe adjustablemember; and govhaving pips to'enter t eindentations in the path of theclutch mechanism, the operation of said, clutch mechanism being effectedby the resistance offered by the controller erning means to preventinjury to the progressively-acting clutch subsequently to its H vactuating member in non-Interfering posiftion relatively to thecontroller subsequently escape from the controller after overcoming theresistance thereof.

21. The combination with a motor; and a power controller to switch thepower on and off relatively to the motor; of a pluralityof successivelyoperable clutch mechanisms driven from the motor;controller-actuatingmeans operated through said clutch mechanisms, and temporarily,restrained by the power controller; and'a governor to regulate thespeed of rotation of the clutch tor-driven, progressive, constrictingclutch.

-mechanisn to operate the shaft; a con-,

troller-actuating member driven from the shaft; and a overnor toregulate the'speed of rotation of the shaft subsequently to theoperation of the controller by its. actuating member.

23. The combination with a motor; and a power controller to switch thepower on or off relatively to the motor; of a shaft; a mo-,

tor-driven, progressive, constricting clutch mechanism to operate theshaft; a controller-actuating member driven from the shaft; a governorto regulate the speed'of rotation of the shaft subsequently to theoperation of the controller by its actuating member; and means todisplace the controller-actuating member relatively to the controllersubsequently to the operation of the latter.

24. The combination with a motor; and a power controller to switch thepower on or off relatively to the motor';.of a shaft; a motor-driven,progressive, constricting clutch mechanism to operate the shaft: acontroller-actuating member driven from the.

shaft; a governor to regulate the speed of' rotation of the 'shaftisubsequently to the operation of the controller by its actuating member;and means to arrest the controller- I 'actuating'member innon-interfering position relatively to the controller, subsequentl tothe ,o eration thereof.

25.. combination with a motor; and a powergeontroller to switch thepower on or ofi relatively to the motor; of a shaft; a motor-driven,progressive, constricting clutch mechanism to operate the shaft; a con--troller-actuating member driven from the shaft; a governor to regulatethe speed of rotation of the shaft subsequently'to, the operationof thecontroller b its actuating member; the governor 'inclu ing-a station-- amember having indentations therein; a fI'ICtiOII-dBViOB turnin with theshaft and governor member to arrest the controllerto theo' eration ofthe latter.

26. T e combination with a motor; and a power controller to switch thepower on or off relatively to the motor; of an automatic troller. I

27. The combination with a motor; and a power controller to switch thepower on and off relatively to the motor of an automatic motor cut-out,including a power-accumullating spring; means to. store power in thespring; a releasable connection between the tensionin'g means and themotor; means op erable at will to release such connection; a shaft towhich the spring is connected; a con troller-actuating device mounted onthe shaft and driven thereby; the controller-actuating device beingreleasably restrained by the power controller; and a governor on theshaft to regulate the speed of rotation thereof, under the power storedin the spring, immediately subsequent to the escape of thecontroller-actuating device from the power controller.

28. The combination with a motor; and a power-controller to switch thepower on or off relatively to the motor; of a controlleractuatingdevice; a progressivelyacting power-accumulating means to drive theactuating device which is adapted to continue its travel subsequently tothe actuation of the controller until the power accumulated in theprogressively-acting means is substantially expended; and means togovern this expenditure of power.

29. The combination with a motor; and a power controller to switch thepower on or off relatively to the motor; of a motordriven clutchmechanism; a constricting clutch mechanism driven thereby; a sheath forthe constricting clutch; an annular keyoperated release member for themotordriven, clutch, slidably mounted on the sheath; andcontroller-actuating means operated by the constricting clutchmechanism.

30. The combination with a motor; and a 1 power controller to switch thepower on or off relatively to the motor; of a rotatable motor-drivenmember; spring-pressed pawls pivotally mounted thereon; acircumferentially-toothed wheel normally engaged by the pawls; aconstricting clutch mechanism driven therefrom; a sheath inclosing theclutch mechanism; an annular key-operated release member slidable on thesheath, and having an annular flange to disengage .the pawls; andcontroller-actuating means operated by the constricting clutchmechanism.

31. The combination with a motor; and a power controller to switch thepoweron or off relatively to the motor; of a motor-driven member; acontroller-actuator; a flexible, power-accumulating means connected withthe motor-driven member to drive the controller-actuator, the operationof said means being controlled by the resistance ofiered by thecontroller; manually-operable means to interrupt the connection betweenthe motor-driven member and the power I accumulating means, to enablethe latter to return to initial condition priorto the automaticoperation of the controller; and means to automatically displace thecontroller-actuator relatively to the controller. 32. The combinationwith a motor; and a power controller to switch the power on and ofirelatively to the motor; of a controlleractuator; aprogressively-acting, motordriven,power-accumulating clutch to drive theactuator, and operate the controllenthe operation of said clutch beingefi'ectedby the resistance which it encounters from the controller; andmeans to displace the actuator relatively to the controller subsequentlyto the automatic operation of the latter to prevent further-engagementof the controlleractuator with the power controller until the latter isreset.

33. The combination with a motor; and apower controller to switch thepower on or ofi' relatively to the motor; of a pluralit of successivelyoperable clutch mechamsms driven from'the motor; controller-actuatingmeans operated by one of the clutch mechaby the progremively-actingmechanism to operate the arm. 7

35. The combination with a motor; and a power controller to switch thepower on and oif relatively to the motor; of a releasable motor-drivenclutch mechanism; a progressively-acting clutch mechanism operatedthereby; means to release the motor-driven clutch at will to enabletheprogressivelyacting clutch ,to return to normal relaxed condition;anpctuating arm; and another clutch mechamsm controlled by the progres.

sivelv-acting clutch mechanism to operate the arm.

36. The combination with a motor; and a power controller having manualmeans to I switch the power on and ofi relatively to the motor;of anautomatic motor cut-out, includinga controller-actuating device, and aprogressive constricting clutch driven from the motor, to Operate theactuating device; means to disconnect the motor and the constrictinclutch at will, to enable the latter to return to normal relaxedcondition; the power controller including a lever shiftable by themanual means into or out of the path to interrupt the drive connectionto enable the spring to resume its normal relaxed con dition; the powercontroller having a member shiftable by the switching means into thepath of the actuating device, to enable the latter to operatethecontroller when the switching means is in one of its adjusted positions.

38 The combination with a motor; and a power controller having means toswitch the power on and 0d relatively to the motor; of an automaticmotor cut-out, operable independently of the switching means, andincluding a spring; a releasable drive connection between one end of thespring and the motor to tension the spring; a shaft to which the otherend of the spring is fastened; a

controller-actuating vdevice axially shiftable on and rotatable with theshaft; and means operableat willto interrupt the drive con-- nection toenable the spring to resume its normal relaxed condition; the powercontroller also including means shiftable by the switching means intothe path of the actuating device, to temporarily arrest the latter toeffect the axial travel of the actuating device along the shaft; andmeans to restore the actuating device to normal position upon its escapefromthe shiftable means.

39. The combination with a motor; and a power controller to switch thepower onor oil relatively to the motor; of a motor-operated clutch; ashaft; a constricting device connected to the driven member of thedilatory clutch mechanism to cause the arm to turn with the shaft; andmanually-operable means to release them'gotor driven clutch incomesdriven clutch mechanism; a shaft; a pro-- gressively-acting clutchmechanism operated by the motor-driven clutch and adapted to graduallyconstrict about the shaft; a controller-actuating arm loose on theshaft; a clutch driven by the progressively-acting mechanism to operatethe arm; and means to restore the arm to normal position, to normallyprevent interference with the controller.

4-1. The combination with a motor; and a power controller to switch thepower on or ofi relatively to the motor; of a motordriven clutchmechanism; a shaft; a progressively-acting clutch mechanism operated bythe motor-driven. clutch and adapted to gradually constrict about theshaft; a controller-actuating arm loose on the shaft; a clutch driven bythe progressively-acting mechanism to operate the arm; and means toarrest the arm in non-interfering position relatively to the controller.

t2. The combination with a motor; and a power controller to switch thepower on or ofi' relatively to the motor; of a motor-driven clutchmechanism; a progressively-acting clutch mechanism operated thereby; anactuating arm; another clutch mechanism controlled by theprogressively-acting clutch mechanism to operate the arm; and means toarrest the arm, in non-interfering position relatively to thecontroller, after the automatic operation of the latter.

43. The combination with a motor; and a power controller to switch thepower on and off relatively to the motor; of a motor-driven clutchmember; an abutment spaced apart.

therefrom; a loosely-supported controlleractuatingarm having a coactingclutch memher and shiftable along its support between the driving clutchmember the abutment, the driving clutch member rotatable independentlyof the arm and adapted to crowd the armtoward the abutment until the twoclutch members coact to turn the arm; and a cam lever connected'to thecontroller to be shifted into and out of the path controller-actuatingmeans to actuate the 'controller; and a lever connected with thecontroller and shiftable into and out of the vpath of thecontroller-actuating means, and

means; a motor-driven dilatory clutch memher on the opposite sidethereof to shift thecontroller-actuating means toward the abut-' mentuntil it turns with the clutch member to actuate'the controller;manually-operable means to interrupt the operation of the dilatoryclutch member prior to .the automatic actuation of the controller; andmeans operable to return the actuating devicetto normal position. J

46. The combination with a motor; and a power controller to switch thepower on or off relatively to the motor; of a shaft; acontroller-actuating device having a hub loose on the shaft, the hubhaving an in clined recess, and a guide recess; a motordriven clutchmember fast on the shaft on one side of the hub, and having an inclinedtooth normally entered in the recess; an abutment fast on the shaft onthe opposite side of the hub; a guide on the clutch. member seated inthe guide recess to limit the relative rotation of the member and hub,and meansto return the actuating device to normal position.

47. The combination with a motor; and a power controller to shift thepower on or ofl relatively to the motor; of an automatic motor cut-out,including a controller-actuating device; means adapted to graduallypower controller to switch the power on and off relatively to the motor;of a shaft; a motor-driven member rotatable on the shaft;

a connection. releasable at will between the motor and the rotatablemember; a constricting coupling surrounding the shaft and connecting theshaft and rotatable member; and a controller-actuating means associatedwith the shaft, and driven thereby.

49. The combination with a: motor; and a power controller having meansto switch the power on and ofit relatively to the motor, including ayield? ng member to normally retain the mechanism of the powercontroller where adjusted; of a progressively-acting clutch mechanismdriven by the motor to actuate the power controller against theresistance offered by the yielding member; and

member to normally retain t e manually controlled means where adjusted;of a progressively-acting clutch mechanism driven by the motor toactuate the power controller against the resistance ofiered by theretaining member, the clutch mechanism and power controller beingdisconnected when the motor is idle; and means to disconnect the clutchmechanism and the motor at will. 51. The combination with a motor; and apower controller to switch the power on and oil relatively to the motor;of an automatic motor cut-out, including a spring, motordriven means towhich one end of the spring is releasabl connected to store power in thespring; a s aft driven by the spring; a controller-actuator having anon-continuous engagement with the controller; and means operable atwill to release the connection between the spring and motor-drivenmeans, whereby the power accumulated in the spring may be dischargedfrom either end thereof, depending upon the release of the motor-drivenmeans or the escape of the controller-actuator from the powercontroller.

52. The combination with a motor; and a power controller to switch thepower on and off relatively to the motor; of a progressively actingclutch; releasable means to connect the clutch and motor; acontroller-actuator driven by the clutch; the power controller includinga member adjustable into and out of the path of the clutch mechanism too pose a resistance to the free travel of t e controller-actuator andthus, efiect the energizat'ion of the clutch; and means to disable themeans connecting the clutch and controller to switch the power ofi,including a pair of clutch mechanisms arranged in train and driven fromthe motor, one of which clutch mechanisms-is adapted to actprogressively to accumulate suiiicient power to become effective;controller-actuating means operable by the progressive clutch mechanism,to switch the power ofi; anol any time during its progressive action andprior to its operation of the power controller.

v5%. The combination with a calculating machine, having a continuouslyrunning motor; a power controller to switch the power on or 01%relatively to the motor; a counter shaft; a clutch mechanism interposedbetween the counter shaft and the motor; and a manually-operahlestarting key to control memes the clutch meohenism; or means toeutematically operetethe power controller, in cluding econtroller-actuating clevice a progressive clutch mechanism' connecteeltherewith; means including a separable clutch, to transmit power fromthe motor to the progressive clutch whereby the latter graolually storessuihcient power to operate the controller-actuating device to trip thecontroller; and starting key-controlled means to release the separableclutch, and enable the progressive clutch to" automatically return toits initial impotent condition,

AETH'UR PENTEQQ ST.

